Experts in Dense Phase
Pneumatic Conveying

Serving Customers Worldwide

Engineering with Efficiency

About Us

Macawber Engineering, Inc. specializes in the design and engineering of low velocity, dense phase pneumatic conveying and bulk handling processes.

True to our core business for over 40 years with thousands of installations, we offer long term, reliable and efficient solutions to process industries worldwide.

What is Dense Phase Pneumatic Conveying?

Dense Phase

Dense phase pneumatic conveying is the high pressure (>15psi), low velocity (2-15 feet/sec) transfer of dry, bulk materials. Material is gently conveyed using compressed gas or nitrogen through the convey pipe in a continuous dense phase, short slug, or bed flow below the saltation velocity which is where the material is lifted into the airstream.

Our Approach

Macawber Engineering differentiates itself from the market by the simplicity and highly reliable performance of its systems. The Dome Valve®, our robust filling valve, originally developed and patented (US patent 4,137,935 | 5,642,751) by us, is an integral part of our material transfer philosophy. Due to its unique design, we are able to control conveying regimes reliably and use small pressure vessels. Moreover, our proven approach provides an efficient and dependable transfer process without the use of air boosters.

Simplicity. Reliability. Efficiency.

Macawber Engineering, Inc. | Dense-Phase Pneumatic Conveying
principle

• Low Velocity
• Virtually No Wear
• Minimal Degradation

Macawber Engineering, Inc. | Dense-Phase Pneumatic Conveying
Design

• No Boosters
• One Moving Part
• Low Profile Equipment

Macawber Engineering, Inc. | Dense-Phase Pneumatic Conveying
Impact

• Energy Efficiency
• Improved Productivity
• Environmentally Friendly

Industries


 
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Minerals

Metals & Foundry

Chemicals

Power

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cupric hydroxide 1 e1570476790977
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Foods & Pharmaceuticals

Plastics & Resins

Injection

Biomass

More

Animations


Conveying Regimes
Dome Valve
Denseveyor
Sandpump
Ashveyor
Macpump